So your argument is that the small changes accumulate over time, a long time until the species “hops over the edge”, and becomes a new species?
By that logic, it would happen in one generation that two creatures would suddenly stop being able to breed with each other, and then diverge and become another species.
Now, here’s a question for you. Has this ever been observed? How does this square with the catastrophists who admit that evolution cannot be a slow mechanical process. Becaues there’s simply not enough time for these changes to result in what you would see.
So here’s my question, given a guaranteed mutation in one base pair, how long would it take to cross the gap between a man and a chimpanzee? That’s 150k base pairs.
You would be looking at 150k successive changes in one direction. Assuming equal drift between men and monkeys, and a population of men around 500 million people, that would mean 2 ^ 150000 / 8k (births a year).
That makes it a 1/8x10^18 power chance of it occurring over 2 million year. Assuming 5 billion instead of 500 million, gives us a 1/8x10^17 power chance of this occurring.
No. There is no edge. The edge is only in your mind. When walking from a forest into a swamp there is no “line” where forest becomes swamp.
Yes, it has been observed that two separate populations accumulate differences. It is an inevitable consequence of mutation and you haven’t yet come up with any mechanism that is going to prevent these differences from accumulating.
A 2% genetic difference between humans and chimps, and a 6-10% difference over the entire genome - would take some six million years.
The known mutation rate is more than sufficient to explain this change, because many changes are not “fixed” within either population.
So what is going to stop a 2% difference in genetic DNA from accumulating in two separate populations?
You still haven’t proposed a mechanism.
And your only mechanism to explain change in living systems is the one Darwin proposed. You owe a debt to Darwin because his explanation is the only one that you can agree to to account for changes within living systems.
So what is going to stop these changes from accumulating in two separate populations?